Great customer service!! I picked up a Smok Alien yesterday (Got red!!) and they offered me a receipt and I didn't even think about grabbing it (stupid me). All it took was to upload the firmware and then I had a brick on my hands. Called Blue back and the guy found my receipt!! Plus the juice is good and definitely reasonable!! The price of the Alien was also cheap for in town (eBay price!!) and I 100% authenticated my mod!!!!